AHI Architectural Heritage Intervention

“Contributing to enhancing our heritage, as the way forward for 21 st Century architecture is our raison d’être; to emphasize a diverse, rich vision that necessarily complements the intervention is our mission, and achieving it with reflexive and purposeful efforts is the challenge”.

This project, founded in, and directed since, 2011 by Ramon Calonge, Oriol Cusidó, Marc Manzano and Jordi Portal, architects and members of the Group of Architects for the Defence and Intervention in Architectural Heritage (AADIPA), has, through the years become a platform that includes four actions that are both independent and transversal.
The European Award, a biennial event that brings together and showcases the multiple approaches of intervention in Europe.

The International Biennial, a framework that serves to compare and gain closer insight of quality interventions in architectural heritage in non-European countries.

The digital Archive, a live and open window that provides a panoramic view of interventions in the history of our surroundings.

The Forum, a meeting place where you can participate in on-going debates about the main preoccupations and lines of thought about interventions in architectural heritage in Europe.


Quadrangle Building, King's College London

Quadrangle Building, King's College London

The Quadrangle Project brings a building and public space that occupy a highly unusual and constrained site back into use. Situated entirely within a Grade I listed site, located within the Strand Conservation Area in Westminster, the roof of the building forms the Quadrangle at the heart of the founding campus of King’s College. The Quadrangle provides access to 4 separate buildings including The King’s Building (Robert Smirke) and the east Wing of Somerset House (Sir William Chambers). These conditions required high quality and thoughtful design. The thermal upgrade was technically demanding, given the need to maintain existing levels at Quadrangle (roof level). New interventions and extensions within the listed environment use a contemporary language derived from the heritage context. The design of the Quadrangle space re-establishes the ‘lost’ axis of the original plan for the site by Chambers. Our team engaged with the building fabric to integrate new installations that facilitate long-term flexible use of a fragile post-war structure.


Hall McKnight
Ian McKnight
Alastair Hall
Emma Smart
Stephen Laverty
Sarah Carroll
Tom Cookson
Julian Manev
James Boyd
Dan Talkes
Olwyn Greene
Sofia Santos
Joshua Waterstone
Johanna Kleesattel
Matt Drury


Structural & Civil Engineers: Elliott Wood Partnership Limited
Mechanical & Electrical Engineers: AECOM
Lighting Designers: Light Bureau
Cost Consultant: Turner and Townsend
Project Managers: 3PM
Planning Consultant: Gerald Eve
Heritage Consultant: Montagu Evans
CDM Consultants: Hasco Europe Ltd
Main Contractor Shell and Core: Farrans Construction Limited
Shell and Core Contractor’s Architect: Rock Townsend
Main Contractor Fit Out: Overbury








United Kingdom

Surface area sqm


Cost €




Original Programme




© Photographer

Johan Dehlin


1950s building, Neoclassical and Modernist context

Type of intervention

Addition and Transformation

Level of intervention

Total / Integral